Possible stupid question. Whats the advantage of a kit like that over a regular 6" lift kit from like RCX, BDS, etc

Not a stupid question at all....There is a big difference between the two styles of lift. No disrespect but the "regular" 4" and 6" kits are for looks more than anything else. They basically give you the clearance to run taller tires and look great.

This kit is a long travel kit which is designed to give you more suspension travel as well as keeping the center of gravity lower (3" vs 4 or 6"), yet still allow you to run taller tires. Basically a pre-runner kit that would be suitable for high speed desert/offroad use. With the combination of longer travel suspension and coilovers, the ride is greatly improved as well.